Cannot create file '/my_project/.gitignore'. File already exists.

[nikolaygit]

the PyCharm message to create .gitignore was snown twice and when clicked the second time, it throws this error:

Cannot create file '/my_project/.gitignore'. File already exists.: Cannot create file '/my_project/.gitignore'. File already exists.
com.intellij.util.IncorrectOperationException: Cannot create file '/my_project/.gitignore'. File already exists.
    at com.intellij.psi.impl.file.PsiDirectoryImpl.checkAdd(PsiDirectoryImpl.java:518)
    at com.intellij.psi.impl.file.PsiDirectoryImpl.add(PsiDirectoryImpl.java:444)
    at mobi.hsz.idea.gitignore.file.GitignoreTemplatesFactory.createFromTemplate(GitignoreTemplatesFactory.java:30)
    at mobi.hsz.idea.gitignore.command.CreateFileCommandAction.run(CreateFileCommandAction.java:21)
    at com.intellij.openapi.application.RunResult.run(RunResult.java:38)
    at com.intellij.openapi.command.WriteCommandAction$2$1.run(WriteCommandAction.java:118)
    at com.intellij.openapi.application.impl.ApplicationImpl.runWriteAction(ApplicationImpl.java:984)
    at com.intellij.openapi.command.WriteCommandAction$2.run(WriteCommandAction.java:115)
    at com.intellij.openapi.command.impl.CommandProcessorImpl.executeCommand(CommandProcessorImpl.java:124)
    at com.intellij.openapi.command.impl.CommandProcessorImpl.executeCommand(CommandProcessorImpl.java:99)
    at com.intellij.openapi.command.WriteCommandAction.performWriteCommandAction(WriteCommandAction.java:112)
    at com.intellij.openapi.command.WriteCommandAction.access$000(WriteCommandAction.java:33)
    at com.intellij.openapi.command.WriteCommandAction$1.run(WriteCommandAction.java:80)
    at com.intellij.openapi.command.WriteCommandAction.execute(WriteCommandAction.java:85)
    at mobi.hsz.idea.gitignore.daemon.MissingGitignoreNotificationProvider$1.run(MissingGitignoreNotificationProvider.java:63)
    at com.intellij.ui.EditorNotificationPanel$2.hyperlinkActivated(EditorNotificationPanel.java:88)
    at com.intellij.ui.HyperlinkAdapter.hyperlinkUpdate(HyperlinkAdapter.java:28)
    at com.intellij.ui.HyperlinkLabel.fireHyperlinkEvent(HyperlinkLabel.java:172)
    at com.intellij.ui.HyperlinkLabel.processMouseEvent(HyperlinkLabel.java:105)
    at java.awt.Component.processEvent(Component.java:6281)
    at java.awt.Container.processEvent(Container.java:2229)
    at java.awt.Component.dispatchEventImpl(Component.java:4872)
    at java.awt.Container.dispatchEventImpl(Container.java:2287)
    at java.awt.Component.dispatchEvent(Component.java:4698)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4489)
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
    at java.awt.Container.dispatchEventImpl(Container.java:2273)
    at java.awt.Window.dispatchEventImpl(Window.java:2719)
    at java.awt.Component.dispatchEvent(Component.java:4698)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
    at java.awt.EventQueue.access$200(EventQueue.java:103)
    at java.awt.EventQueue$3.run(EventQueue.java:694)
    at java.awt.EventQueue$3.run(EventQueue.java:692)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
    at java.awt.EventQueue$4.run(EventQueue.java:708)
    at java.awt.EventQueue$4.run(EventQueue.java:706)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
    at com.intellij.ide.IdeEventQueue.e(IdeEventQueue.java:697)
    at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:520)
    at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:335)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)